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Working in IT isn't always pretty. After all, we can't all work on the cutting-edge technologies all the time. Some of us have to get dirty -- in some cases, literally.

Unfortunately, dirty jobs -- whether you're being chained to a help desk, hacking 30-year-old code, finding yourself wedged between warring factions in the conference room, or mucking about in human effluvia -- are necessary to make nearly every organization tick. (Well, maybe not the human effluvia part.)

The good news? Master at least one of them, and you're pretty much guaranteed a job with somebody. We don't guarantee you'll like it, though.

Here are seven of the dirtiest jobs in IT, and why your organization needs them.